You said you tried a Thermaltake fan? Are you still trying to use that fan? If you do know that our product was only designed with our fans and and may not work with other company products. You can definitely not mix fans either. Each RGB hub can only be designated one series of fan and need to be in sequential order. This means you have to have a fan in port 1,2,3..so on. Having fans plugged into 5,6,7 only will not work. Also it is not recommened to unplug fans from the Commander Pro/Lighting Node Pro/RGB hub when power is on as their is a possibility of shorting out the port or fans.